I thought you were talking about the manufacturer's claims that you see in the ads. I had mine chronographed at the pro shop this year and it was in the 250s somewhere. It's an older Mathew's Featherlite at 70lbs. I don't know the arrow weight - carbons with 100gr heads. However, there was another guy there whose bow shot around the same speed. He complained that the factory claimed over 300fps. He told me that most of these 300+ claims are way below in real life. He thought Mathews was the closest.